USCIS received my STEM extension application (I-765) on April 18, 2017. It's been 84 days since then. There has been no RFE. I put...

Thanks for the reply. I called them but they don't tell anything. That's why I put in the service request.

Thanks for the reply. Whats the last 5 digits of your receipt? Mine is 88xxx series. I surely cannot wait for 1 month, let alone 40 more days :/